I'm surprised you didn't find any of the phrases in Google since the account (obviously) exists here in WT and Google certainly indexes WT. I put the first sentence into Google, and the first hit was his WT profile.
I see nothing wrong with the account since it was written by an eye witness. It's a presumptively reliable secondary source.
It's also appropriately sourced, with a birth index and social security record as well as a FG reference. It wouldn't hurt to add sources, if they can be found, but the profile is fine as it is, IMO.
I don't think other genealogical sites are sources for profiles, although it doesn't hurt to put them in the See also section.